The laboratory is the main position, and the breeding farm is the main battlefield. It is important to publish high-level papers and win awards, but it is more important to apply the achievements to aquaculture, solve practical problems, and then improve the application level of science and technology in the industry. ——Liu Yulan, a professor and doctoral supervisor of the School of Animal Science and Nutrition Engineering of Wuhan Light Industry University, mentioned Liu Yulan in the School of Animal Science and Nutrition Engineering of Wuhan Light Industry University, and the students all called her "goddess of science and technology" and "research star". But Liu Yulan prefers to call herself a "keeper". "My scientific research 'circle' is very small. In the past 20 years, I have been walking around pigs and chickens all day, thinking about how to make them eat more healthily." Liu Yulan told the Science and Technology Daily. In the eyes of the "post-00s", this 47 year old professor and doctoral supervisor is different. Liu Yulan always laughs in class. She will add the current popular elements of the Internet to her professional classes. Under her packaging, the knowledge of animal husbandry is no longer "rustic", but full of freshness. With outstanding achievements in teaching and scientific research, Liu Yulan won the National May Day Labor Medal in 2022 this year. Lead the students to read the English literature intensively, "Cultivate talents from all over the world." Liu Yulan believes that this is the honor and happiness of being a teacher. Liu Yulan attaches great importance to the preparation before class. Before class, she needs to consult a large number of documents and organically combine the latest research progress of the discipline, practical experience from the production line and book knowledge. In the classroom, Liu Yulan was passionate and mobilized the classroom atmosphere; Between classes, she often exchanges scientific research plans and progress with students to improve their interest in scientific research; After class, she often asks the students about their feelings about listening to the class, so as to adjust the teaching progress and difficulty. She also sends the cutting-edge materials of the discipline to the students to discuss with them the international academic opinions that have not been finalized. In order to exercise the scientific research ability of the postgraduate students, Liu Yulan agreed with the team teachers to "read an English literature intensively in ten days". "I read one English article in ten days, more than 30 articles in one year, and nearly 100 articles in three years." Liu Yulan said that these documents involve hot spots in the industry and frontier disciplines. If you stick to reading them, your scientific vision will be expanded. Liu Yulan's team also has the tradition of fortnightly PPT report on the scientific frontier. She asks students to read a cutting-edge academic paper, make an academic report on the stage, and then the team teacher will comment on it on the spot. Since teaching, Liu Yulan has insisted on the unity of teaching and educating people, and regarded herself as a guide and friend of students. In her spare time, she often discusses with students how to behave and do things, and encourages them to set lofty ambitions, based on her own experience and stories around her. Buy test materials out of one's own pocket. "If you want to give students a glass of water, you need to have a bucket of water first." This is what Liu Yulan often said. She said so and did so. How to make pigs eat more nutritionally and grow healthier is a problem that Liu Yulan has studied for nearly 20 years since she was a doctor. In the laboratory, she took piglets as the model to deepen the nutrition research to the cellular and molecular levels. Her research achievements were published in the professional journals of the highest international level in the discipline for many times, and were highly praised by international and domestic experts. However, at first this road was Liu Yulan